package com.atguigu.gulimall.product.service.impl;

import com.atguigu.gulimall.product.entity.AttrAttrgroupRelationEntity;
import com.atguigu.gulimall.product.entity.AttrEntity;
import com.atguigu.gulimall.product.service.AttrAttrgroupRelationService;
import com.atguigu.gulimall.product.service.AttrService;
import com.atguigu.gulimall.product.vo.AttrGroupRelationVo;
import com.atguigu.gulimall.product.vo.AttrGroupWithAttrsVo;
import com.atguigu.gulimall.product.vo.SpuItemAttrGroupVo;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.AttrGroupDao;
import com.atguigu.gulimall.product.entity.AttrGroupEntity;
import com.atguigu.gulimall.product.service.AttrGroupService;

import javax.annotation.Resource;


@Service("attrGroupService")
public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEntity> implements AttrGroupService {

    @Resource
    private AttrService attrService;
    @Resource
    private AttrAttrgroupRelationService attrAttrgroupRelationService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrGroupEntity> page = this.page(
                new Query<AttrGroupEntity>().getPage(params),
                new QueryWrapper<AttrGroupEntity>()
        );

        return new PageUtils(page);
    }

    /**
     * 根据分类id获取属性分组列表******
     * @param catelogId
     * @return
     */
    @Override
    public List<AttrGroupWithAttrsVo> getAttrGroupWithAttrsByCatelogId(Long catelogId) {
        //1. 获取分组信息
        List<AttrGroupEntity> groupEntities = this.list(new QueryWrapper<AttrGroupEntity>()
                .eq("catelog_id", catelogId));
        //2.
        List<AttrGroupWithAttrsVo> attrGroupWithAttrsVos = groupEntities.stream()
                .map(group -> {
                    AttrGroupWithAttrsVo attrGroupWithAttrsVo = new AttrGroupWithAttrsVo();
                    BeanUtils.copyProperties(group, attrGroupWithAttrsVo);
                    List<AttrEntity> relationAttr = attrService.getRelationAttr(attrGroupWithAttrsVo.getAttrGroupId());
                    attrGroupWithAttrsVo.setAttrs(relationAttr);
                    return attrGroupWithAttrsVo;
                }).collect(Collectors.toList());
        return attrGroupWithAttrsVos;
    }


    /**
     * 分页获取属性分组列表
     *
     * @param params
     * @param catelogId
     * @return
     */
    @Override
    public PageUtils queryPage(Map<String, Object> params, Long catelogId) {
        QueryWrapper<AttrGroupEntity> queryWrapper = new QueryWrapper<>();
        queryWrapper.eq("catelog_id", catelogId);
        String key = (String) params.get("key");
        if (StringUtils.isNotEmpty(key)) {
            queryWrapper.and((wrapper) -> {
                wrapper.eq("attr_group_id", key)
                        .or().like("attr_group_name", key);
            });
        }
        if (catelogId == 0) {
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                    queryWrapper);
            return new PageUtils(page);
        } else {
            queryWrapper.eq("catelog_id", catelogId);
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),
                    queryWrapper);
            return new PageUtils(page);
        }

    }

    /**
     * 根据spuId和catalogId获取属性分组列表******
     * @param spuId
     * @param catalogId
     * @return
     */
    @Override
    public List<SpuItemAttrGroupVo> getAttrGroupWithAttrsBySpuIdAndCatalogId(Long spuId, Long catalogId) {
        AttrGroupDao baseMapper = this.getBaseMapper();
        List<SpuItemAttrGroupVo> vos=baseMapper.getAttrGroupWithAttrsBySpuIdAndCatalogId(spuId, catalogId);
        return vos;
    }
}
